The following permissions are required for the app service. For optional permissions, the default functionality of the service is turned on, but not allowed.

[Required permissions] - None

[Optional permissions] - Camera: Used to attach photos to email - Location: Used to attach current location information to email - Contacts: Used to link email recipients/senders with contacts and synchronize contact information when using Microsoft Exchange account - SMS: Used to provide SMS synchronization function when using Microsoft Exchange account - Storage: Used to attach files to email or save attached files